Calculate your Child Tax Credit based on income and number of qualifying children.
The CTC is $2,000 per qualifying child under 17. It begins phasing out at $200,000 AGI (single) or $400,000 (married filing jointly), reducing by $50 for every $1,000 over the threshold. Up to $1,700 of the credit is refundable as the Additional Child Tax Credit (ACTC).